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Rapid identification of bacterial select agents using loop-mediated isothermal amplification.
BMC Infect Dis
January 2025
Diagnostic Systems Division, United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Maryland, 21702, United States of America.
Background: Point of need diagnostics provide efficient testing capability for remote or austere locations, decreasing the time to answer by minimizing travel or sample transport requirements. Loop-mediated isothermal amplification (LAMP) is an appealing technology for point-of-need diagnostics due to its rapid analysis time and minimal instrumentation requirements.
Methods: Here, we designed and optimized nine LAMP assays that are sensitive and specific to targeted bacterial select agents including Bacillus anthracis, Francisella tularensis, Yersinia pestis, and Brucella spp.
Elucidation of peptide screen for targeted identification of Yersinia pestis by nano-liquid chromatography tandem mass spectrometry.
Sci Rep
January 2025
Microbiology Division, Defence Research and Developmental Establishment, Jhansi Road, Gwalior, 474002, India.
Yersinia pestis, a Gram-negative bacterium is the causative agent of the fatal communicable disease plague. The disease had a profound impact on human history. Plague bacteria are usually transmitted to humans through the bite of an infected rat flea.
View Article and Find Full Text PDFAntibiotic resistance genes in plague ecosystems: Threatening the emergence of resistant plague.
Ecotoxicol Environ Saf
November 2024
School of Public Health, Lanzhou University, Lanzhou, Gansu Province, China. Electronic address:
The study aimed to investigate the prevalence of antibiotic resistance genes (ARGs) within the ecosystem of natural plague foci, assessing their potential impact on the efficacy of plague treatments. Employing 16S rRNA gene sequencing and high-throughput quantitative PCR, microbial communities and ARGs were detected, with subsequent analysis of interactions among ARGs, mobile genetic elements (MGEs), environmental factors, and microbial species. Tetracycline resistance genes were found to be dominant, with multidrug and tetracycline resistance ARGs primarily associated with marmots and ecological soil, while pikas predominantly harbored β-lactam resistance ARGs.
View Article and Find Full Text PDFDifferent characteristics of the soil in marmot habitats might be one of the factors that influcting prevalent in which than pikas.
Front Microbiol
October 2024
School of Public Health, Lanzhou University, Lanzhou, Gansu Province, China.
Article Synopsis
- Marmots are more commonly affected by plague than other rodents like pikas, and this study investigates the soil characteristics around their burrows to understand why.
- Soil samples were collected from various locations, revealing that marmot habitats have lower organic matter and specific minerals, but higher levels of electrical conductivity and soluble salts compared to pika areas.
- The distinct soil properties in marmot habitats, such as low microbial diversity and certain nutrient levels, are linked to the higher prevalence of plague among marmots.
Characterization of bacterial diversity in rhizospheric soils, irrigation water, and lettuce crops in municipalities near the Bogotá river, Colombia.
Heliyon
August 2024
Grupo de Investigación en Ciencias Biológicas y Químicas, Facultad de Ciencias, Universidad Antonio Nariño, Bogotá DC, Colombia.
The use of wastewater in agricultural practices poses a potential risk for the spread of foodborne diseases. Therefore, this study aimed to characterize the bacterial biodiversity in rhizospheric soil, irrigation water, and lettuce crops in three municipalities adjacent to the Bogotá River, Colombia. Samples were collected in Mosquera, Funza, and Cota municipalities, including rhizospheric soil, lettuce leaves, and irrigation water.
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